Please follow the steps mentioned below to add serial numbers for a product in bulk:
Step 1: Go to purchases >> Click on Create Purchase
Step 2: Click on Add new product
Step 3: Enter the product details and enable serial number option >> Add item
Step 4: It will redirect you to a page to add serial numbers as shown below
Step 5: Go to Excel >> Enter all the serial numbers in bulk as shown below >> Copy them
Step 6: Now, paste those serial numbers in the serial number page as shown below
Step 7: Now, the serial numbers are added in bulk for a product as shown below >> Click on Save
